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Some further syscall adjustments. Split the module syscalls out of

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insmod and into libbb. Only enable them for libc5.  glibc and
uClibc don't need them.
 -Erik
This commit is contained in:
Eric Andersen
2001-04-05 06:08:14 +00:00
parent fdefbbbe85
commit a2a978ae23
5 changed files with 120 additions and 117 deletions
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61
libbb/syscalls.c
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@@ -1,10 +1,9 @@
/* vi: set sw=4 ts=4: */
/*
* Utility routines.
* some system calls possibly missing from libc
*
* Copyright (C) tons of folks. Tracking down who wrote what
* isn't something I'm going to worry about... If you wrote something
* here, please feel free to acknowledge your work.
* Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -20,19 +19,28 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
* Permission has been granted to redistribute this code under the GPL.
*
*/
#include <stdio.h>
#include <errno.h>
#include <sys/syscall.h>
#include <linux/unistd.h>
#include <unistd.h>
/* Kernel headers before 2.1.mumble need this on the Alpha to get
_syscall* defined. */
#define __LIBRARY__
#include <sys/syscall.h>
#include <asm/unistd.h>
#include "libbb.h"
#if defined(__ia64__)
int sysfs( int option, unsigned int fs_index, char * buf)
{
return(syscall(__NR_sysfs, option, fs_index, buf));
}
#else
_syscall3(int, sysfs, int, option, unsigned int, fs_index, char *, buf);
#endif
#ifndef __NR_pivot_root
#warning This kernel does not support the pivot_root syscall
@@ -50,7 +58,14 @@ int pivot_root(const char * new_root,const char * put_old)
return -1;
}
#else
_syscall2(int,pivot_root,const char *,new_root,const char *,put_old)
# if defined(__ia64__)
int pivot_root(const char * new_root,const char * put_old)
{
return(syscall(__NR_pivot_root, new_root, put_old));
}
# else
_syscall2(int,pivot_root,const char *,new_root,const char *,put_old);
# endif
#endif
@@ -59,27 +74,6 @@ _syscall2(int,pivot_root,const char *,new_root,const char *,put_old)
#if __GNU_LIBRARY__ < 5
/* These syscalls are not included as part of libc5 */
_syscall2(int, bdflush, int, func, int, data);
_syscall1(int, delete_module, const char *, name)
#ifndef __NR_query_module
#warning This kernel does not support the query_module syscall
#warning -> The query_module system call is being stubbed out...
int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
{
/* BusyBox was compiled against a kernel that did not support
* the query_module system call. To make this application work,
* you will need to recompile with a kernel supporting the
* query_module system call.
*/
fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n");
fprintf(stderr, "with a kernel supporting the query_module system call. -Erik\n\n");
errno=ENOSYS;
return -1;
}
#else
_syscall5(int, query_module, const char *, name, int, which,
void *, buf, size_t, bufsize, size_t*, ret);
#endif
#ifndef __alpha__
# define __NR_klogctl __NR_syslog
@@ -109,11 +103,6 @@ _syscall2(int, umount2, const char *, special_file, int, flags);
#endif /* __GNU_LIBRARY__ < 5 */
#if 0
_syscall1(int, sysinfo, struct sysinfo *, info);
#endif
/* END CODE */
/*
Local Variables: